Semi-automatic fire arm



FIG. 1 is a left side view of the semi-automatic fire arm;

FIG. 2 is a right side view of the semi-automatic fire arm;

FIG. 3 is a bottom view of the semi-automatic fire arm;

FIG. 4 is a top view the semi-automatic fire arm;

FIG. 5 is a front view of the semi-automatic fire arm; and,

FIG. 6 is a top view of the semi-automatic fire arm.

The broken line showing of portions of the semi automatic fire arm and forms no part of the claimed design. 

The ornamental design for a semi-automatic fire arm, as shown, and described. 